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Download 3D Printed Teeth: Anatomically Correct Primary Replicas
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Virginia Commonwealth University VCU Scholars Compass Capstone Design Expo Posters School of Engineering 2016 3D Printed Teeth: Anatomically Correct Primary Replicas Anh Nguyen Virginia Commonwealth University Stefan Harris Virginia Commonwealth University Follow this and additional works at: http://scholarscompass.vcu.edu/capstone Part of the Mechanical Engineering Commons, and the Nuclear Engineering Commons © The Author(s) Downloaded from http://scholarscompass.vcu.edu/capstone/90 This Poster is brought to you for free and open access by the School of Engineering at VCU Scholars Compass. It has been accepted for inclusion in Capstone Design Expo Posters by an authorized administrator of VCU Scholars Compass. For more information, please contact [email protected]. Team Members: Anh Nguyen & Stefan Harris Faculty Adviser: Hong Zhao, Ph.D. Sponsor: VCU School of Dentistry Sponsor Advisor: William O. Dalhke, DMD 3D Printed Teeth Anatomically Correct Primary Replicas Introduction ● 3D printed teeth are a rising technological advance in dentistry education and practice ● Gives students the chance to work with anatomically accurate teeth ● Current standard for replicas for instruction are ordered in bulk in predetermined shapes ● Any micro computed tomography (CT) scan of a child’s head can be modeled in a 3D design program Visual Process Step 1. Dicom file is loaded onto ITK-Snap and Step 3. Tooth model is further refined in MeshMixer Process Flowchart Step 2. Tooth is segmented Step 4. Tooth model is checked in Solidworks for accuracy Objectives ● Extract teeth from a micro CT scan ● Print teeth with available 3D Printer technologies ● Special Dicom file was supplied by Dr. Dalhke containing CT scan of anonymous patient ● Tooth needed to be extracted into a model usable by 3D modeling program ● Tooth needed to be cleaned up and scaled properly ● 3D printing material needed to accurately represent real tooth ● Tooth had to pass field testing performed by Dr. Dalhke Step 5. Tooth model is printed on Edens260VS with chosen material Conclusion & Significance Challenges and Solutions Challenges: •Resolution of scan may be lost in conversion •Separation of tooth from background is difficult and time consuming •Model may be unrefined and jagged •Material used melted when drilled onto (during field test) Solutions: •Program that compromised resolution with ease of use was utilized •Further practice in manual segmentation increased efficiency •A program for refinement was added for smoother model •Further experimentation resulted in sufficient material Step 6. Final 3D printed tooth • • • • • • • • Teeth from CT scan can be modeled and printed Teeth are anatomically correct (including inner cavities and dental pulp) With correct material, properties of real teeth can be replicated Other features of the mouth can be manufactured such as the mandible Specific teeth can be printed for on-site practicing dentistry and orthodontic use Customized replicas ready on-demand provide cost effective and accurate learning tools Possible future additions such as sensors can be added Mass customization to provide dental students with cheap practice teeth Acknowledgement We would like to thank Dr. Charles Cartin & Ms. Yonka Slavov for assistance in printing the 3D model.
